Dependency modeling of steady state grain size on the stacking fault energy through severe plastic deformation

2015 ◽  
Vol 159 ◽  
pp. 410-412 ◽  
Author(s):  
H. Parvin ◽  
M. Kazeminezhad
Keyword(s):  
Plastic Deformation ◽  
Grain Size ◽  
Steady State ◽  
Severe Plastic Deformation ◽  
Stacking Fault ◽  
Stacking Fault Energy

Influence of stacking fault energy on the minimum grain size achieved in severe plastic deformation

2007 ◽  
Vol 463 (1-2) ◽  
pp. 22-26 ◽  
Author(s):  
Y.H. Zhao ◽  
Y.T. Zhu ◽  
X.Z. Liao ◽  
Zenji Horita ◽  
Terence G. Langdon
Keyword(s):  
Plastic Deformation ◽  
Grain Size ◽  
Severe Plastic Deformation ◽  
Stacking Fault ◽  
Stacking Fault Energy

The Relationship between Mg Content and Extra-Hardening in Ultrafine Grained Al-Mg Alloy by SPD

2018 ◽  
Vol 941 ◽  
pp. 1173-1177
Author(s):  
Yuto Suzuki ◽  
Yuichi Shiono ◽  
Taiki Morishige ◽  
Toshihide Takenaka
Keyword(s):  
Plastic Deformation ◽  
Severe Plastic Deformation ◽  
Work Hardening ◽  
Stacking Fault ◽  
Stacking Fault Energy ◽  
Mg Alloy ◽  
Al Alloy ◽  
Ultrafine Grained ◽  
Mg Content ◽  
The Relationship

Severe Plastic Deformation (SPD) process is one of methods for obtaining UFG-Al. It was reported in SPD-processed Al alloy that the extra-hardening due to work hardening caused by accumulated dislocation in the grains. In Al-Mg alloy, Mg decreases the stacking fault energy in this alloy, and dislocation tends to accumulate in the grains. In this study, Al-Mg alloy with various Mg contents were processed by Equal-Channel Angular Pressed (ECAP) which was one of SPD and annealed after processed ECAP. The relationship between Mg content and magnitude of extra-hardening was investigated. In ECAPed Al-3mass%Mg alloy, it was thought that extra-hardening was caused. Magnitude of extra-hardening was increased with increasing Mg content.

Microstructure of low stacking fault energy silver processed by different routes of severe plastic deformation

2012 ◽  
Vol 536 ◽  
pp. S190-S193 ◽  
Author(s):  
Zoltán Hegedűs ◽  
Jenő Gubicza ◽  
Megumi Kawasaki ◽  
Nguyen Q. Chinh ◽  
Zsolt Fogarassy ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Severe Plastic Deformation ◽  
Stacking Fault ◽  
Stacking Fault Energy

Different behavior of alpha and beta phases in a Low Stacking Fault Energy copper alloy under severe plastic deformation

2020 ◽  
Vol 788 ◽  
pp. 139550 ◽  
Author(s):  
Seyed Elias Mousavi ◽  
Ali Sonboli ◽  
Nastaran Naghshehkesh ◽  
Mahmood Meratian ◽  
Ali Salehi ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Severe Plastic Deformation ◽  
Copper Alloy ◽  
Stacking Fault ◽  
Stacking Fault Energy

Stability of Ultrafine-Grained Microstructure in Fcc Metals Processed by Severe Plastic Deformation

2011 ◽  
Vol 465 ◽  
pp. 195-198 ◽  
Author(s):  
Jenő Gubicza ◽  
Nguyen Q. Chinh ◽  
Sergey V. Dobatkin ◽  
E. Khosravi ◽  
Terence G. Langdon
Keyword(s):  
Thermal Stability ◽  
Plastic Deformation ◽  
Dislocation Density ◽  
Severe Plastic Deformation ◽  
Room Temperature ◽  
Stacking Fault ◽  
Stacking Fault Energy ◽  
High Dislocation Density ◽  
Ultrafine Grained ◽  
The Stability

The thermal stability of ultrafine-grained (UFG) microstructure in face centered cubic metals processed by severe plastic deformation (SPD) was studied. The influence of the SPD procedure on the stability was investigated for Cu samples processed by Equal-Channel Angular Pressing (ECAP), High-Pressure Torsion (HPT), Multi-Directional Forging and Twist Extrusion at room temperature (RT). It is found that HPT results in the lowest thermal stability due to the very high dislocation density. Furthermore, the effect of the low stacking fault energy of Ag on the stability is also investigated. It is revealed that the UFG microstructure produced in Ag by ECAP is recovered and recrystallized during storage at room temperature. The driving force for this unusual recovery and recrystallization is the high dislocation density developed during ECAP due to the high degree of dislocation dissociation caused by the very low stacking fault energy of Ag.

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